The world's biggest problem is not sexism, racism, political polarization, war, or income inequality. The key never-ending crisis is that most people can't or won't think. Poor thinking skills cut cross all the usual lines to drag down societies like nothing else. Thinking well could alleviate or solve virtually all our problems.

As to the future of humanity, I’m essentially an optimist. I believe that with the advancement of technology, mankind has a hopeful future. But this optimistic view is based on reason: on one hand, whether the future will be bright or be dark depends largely on the choices we make today.

The future is better than the past. Despite the crepehangers, romanticists, and anti-intellectuals, the world steadily grows better because the human mind, applying itself to environment, makes it better. With hands...with tools...with horse sense and science and engineering.

If the Easter Islanders couldn't solve their milder local problems in the past, how can the modern world hope to solve its big global problems? People who get depressed at such thoughts often then ask me, “Jared, are you optimistic or pessimistic about the world’s future?” I answer, “I am a cautious optimist.” By that, I mean that, on the one hand, I acknowledge the seriousness of the problems facing us. If we don’t make a determined effort to solve them, and if we don’t succeed at that effort, the world as a whole within the next few decades will face a declining standard of living, or perhaps something worse. That’s the reason why I decided to devote most of my career efforts at this stage of my life to convincing people that our problems have to be taken seriously and won’t go away otherwise. On the other hand, we shall be able to solve our problems – if we choose to do so.

People sometimes ask me what I think of the world today – as if 10,000 published Thoughts do not provide sufficient enlightenment on that subject. But let me not shrink from an honest answer. In world affairs, I am an optimist. Despite attention-grabbing headlines about the latest shocking incidents, and worrisome developments resulting from the fact that nationalism is still trumping internationalism, I believe that overall the people being born today, in whatever countries and circumstances, have a better chance than ever before of living worthwhile lives. At nearly 84, I'm sorry science hasn't yet invalidated the concept of mortality – but that, I'm sure, is coming. And, in the meantime, as inhabitants of this small planet, perhaps with most of our worst times behind us, I'm confident that we can, in general, find much to be thankful for.

Every time there was a big transformation, whether it was the Industrial Revolution and the steam engine, there was this worry that there were going to be no more jobs. ... But I think at the same time, looking at a delay that might have happened 100 years ago or 200 years ago is different from understanding that the pace of change is so rapid that if we start, and we tool up our workforce to be more flexible, more open, more skilled in seeing where the opportunities are, we’re going to be better positioned than anyone else in the world. I’m not saying there’s not going to be disruption. [But] we’re doing well because we are back investing in the kinds of things that are making a difference in people’s lives.

Thousands of years ago, it was only kings, pharaohs, and emperors who had the ability to solve large-scale problems. Hundreds of years ago, this power expanded to the industrialists who built our transportation systems and financial institutions. But today, the ability to solve such problems has been thoroughly democratized. Right now, and for the first time ever, a passionate and committed individual has access to the technology, minds, and capital required to take on any challenge. Even better, that individual has good reason to take on such challenges. As we will soon see, the world's biggest problems are now the world's biggest business opportunities. This means, for exponential entrepreneurs, finding a significant challenge is a meaningful road to wealth. Ultimately, as I teach at Singularity University (much more on this later), the best way to become a billionaire is to solve a billion-person problem.

Thousands of years ago, it was only kings, pharaohs, and emperors who had the ability to solve large-scale problems. Hundreds of years ago, this power expanded to the industrialists who built our transportation systems and financial institutions. But today, the ability to solve such problems has been thoroughly democratized. Right now, and for the first time ever, a passionate and committed individual has access to the technology, minds, and capital required to take on any challenge. Even better, that individual has good reason to take on such challenges. As we will soon see, the world’s biggest problems are now the world’s biggest business opportunities. This means, for exponential entrepreneurs, finding a significant challenge is a meaningful road to wealth. Ultimately, as I teach at Singularity University (much more on this later), the best way to become a billionaire is to solve a billion-person problem.